This document provides an overview of new technologies including wikis, blogs, Twitter, and Facebook. It begins with administrative announcements for an upcoming class. Short videos are embedded to introduce each topic. Wikis are defined as freely editable web pages that allow users to add or modify content. Blogs are described as regularly updated web content, like online journals. Key features of Twitter and Facebook are outlined, such as how Twitter allows sharing of updates in 140 characters and how Facebook enables social networking. Usage statistics are also presented for Twitter and Facebook.